TABLE 5 Breeding productivity of the northern bald ibis in the two sedentary, semi-captive colonies Rosegg and Grünau, and the breeding sites in Austria and Germany in the context of the LIFE+ reintroduction project.
Rosegg (Austria)
Year Pairs 2001
2002 2003 2004 2005 2006 2007 2008
5 4 5 8
2009 10 2010 12 2011 13 2012 12 2013 10 2014 18 2015 19 2016 18 2017 2018
Sedentary, semi-captive Fledglings1
Grünau (Austria) Sedentary, semi-captive
Fledglings/pair Pairs 4
12 5 8
7 (3) 5 (4) 5 (3)
20 (0)
11 (13) 13 (14) 14 (11) 9 (0) 8 (0)
26 (16) 15 (32) 16 (32)
2.0 2.3 1.6 2.5 2.3 2.3 1.9 0.8 0.8 2.3 2.5 2.7
10 9
11 12 11 15 13 10 10 5 5
13
7 1
10 12 12 12 13 15 22 18 20 25 6 7
18
0.5 0.6 0.2 1.3 1.2 1.3 1.1 1.1 1.4 1.5 1.4 2.0 2.5 1.2 1.4 1.4
Burghausen (Germany) Migratory, reintroduced
Fledglings Fledglings/pair Pairs 2
Kuchl (Austria) Migratory, reintroduced Fledglings Fledglings/pair Pairs Fledglings Fledglings/pair
1 5 7 6 4 3 4 4
1Numbers in parentheses are additional fledglings that were taken for hand-rearing by the LIFE+ Programme.
3 8 6
11 10 6
10 12
3.0 1.6 0.9 1.8 2.5 2.0 2.5 3.0
1 2 2 3 5 6
0 2 7 7 8
14
0.0 1.0 3.5 2.3 1.6 2.3
940 C. Böhm et al.
Oryx, 2021, 55(6), 934–946 © The Author(s), 2020. Published by Cambridge University Press on behalf of Fauna & Flora International doi:10.1017/S0030605320000198
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